• Find the right o-ring for your project. Remember – an O-Ring not squeezed in its application is probably the wrong o-ring.

    O-Ring Gland Calc.
  • Apple Rubber has over 7,000 sizes of O-rings. More sizes added daily.

    O-Ring Size Search
  • Rubber compounds are a mixture of polymers, fillers, antioxitives and curatives. What’s right for your application?

    Material Selection Guide
  • Match your application's composition with the o-ring material offering the best chemical resistance.

    Chemical Compat. Guide
  • Dedicated to helping you design a successful sealing solution.

    Seal Design Guide

Hot Topics

ASTM D2000 Part II: Understanding Rubber Testing Fluids

We recently broke down ASTM D2000 -- the Standard Classification System for Rubber Products. Now, it's time for the next step: understanding rubber testing fluids. Learn what they are, how to identify them, and how they correlate to real-life oil applications.

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Apple Blog

Apple Rubber Celebrates National Engineers Week

This week, we're celebrating our engineers. Learn about National Engineers Week, why it's important, and what engineering means to Apple Rubber -- and while you're at it, check out our infographic, too.

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Who is Apple Rubber?

Meet Apple Rubber -- a leader in rubber compounds and sealing technology. Improving the products we rely upon. Changing the way we live.

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Apple Rubber does more.

Apple Rubber Products Inc.® is a leading designer and manufacturer of o-rings, rubber seals and custom sealing devices. When you need a standard AS568 rubber o-ring, a complex Liquid Silicone Rubber (LSR) prototype seal or medical-grade seals and parts, Apple Rubber has the sealing capabilities to deliver the sealing solution you need.